Depends on what state your in. In TX you'll be put on deferred probation, about 80hrs of community service, VIP class, Alcohol/drug education class and cost without attorney fees is anywhere from $800 to $2,000. I believe the Max fine is $2,000 for a first but that would also depend on the charge. If you qualify for a court appointed attorney that will cost you about $100 if you don't an attorney will charge around $500-$800.
Did you crash? Run from the police? What happened?